KR20190063710A - 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법 - Google Patents

첨가제 제조 방법 및 이를 이용한 용선의 정련 방법 Download PDF

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Publication number
KR20190063710A
KR20190063710A KR1020170162696A KR20170162696A KR20190063710A KR 20190063710 A KR20190063710 A KR 20190063710A KR 1020170162696 A KR1020170162696 A KR 1020170162696A KR 20170162696 A KR20170162696 A KR 20170162696A KR 20190063710 A KR20190063710 A KR 20190063710A
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KR
South Korea
Prior art keywords
additive
acid
sludge
sulfuric acid
neutralization
Prior art date
Application number
KR1020170162696A
Other languages
English (en)
Korean (ko)
Inventor
김완이
남재우
송준민
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020170162696A priority Critical patent/KR20190063710A/ko
Priority to CN201811450724.0A priority patent/CN109988878A/zh
Publication of KR20190063710A publication Critical patent/KR20190063710A/ko

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/02—Dephosphorising or desulfurising
    • C21C1/025—Agents used for dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • C21C7/0645—Agents used for dephosphorising or desulfurising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
KR1020170162696A 2017-11-30 2017-11-30 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법 KR20190063710A (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020170162696A KR20190063710A (ko) 2017-11-30 2017-11-30 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법
CN201811450724.0A CN109988878A (zh) 2017-11-30 2018-11-30 添加剂制备方法及利用该方法的铁水精炼方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170162696A KR20190063710A (ko) 2017-11-30 2017-11-30 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법

Publications (1)

Publication Number Publication Date
KR20190063710A true KR20190063710A (ko) 2019-06-10

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ID=66848685

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170162696A KR20190063710A (ko) 2017-11-30 2017-11-30 첨가제 제조 방법 및 이를 이용한 용선의 정련 방법

Country Status (2)

Country Link
KR (1) KR20190063710A (zh)
CN (1) CN109988878A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102325799B1 (ko) * 2020-06-30 2021-11-12 현대제철 주식회사 용선용 매용제 및 이를 이용한 용강 제조 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070007812A (ko) 2004-04-07 2007-01-16 아웃토컴푸 스테인레스 에이비 강 생산과 관련된 방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910391A (ja) * 1982-07-09 1984-01-19 Akemi Morimoto 高濃度廃酸の処理方法
FI120742B (fi) * 2006-05-10 2010-02-15 Outokumpu Oy Menetelmä terästuotannon yhteydessä
CN104310647B (zh) * 2014-10-21 2017-05-17 徐超群 不锈钢酸洗废酸液与废水处理的资源化利用方法
CN105060599B (zh) * 2015-08-28 2016-05-11 中南大学 一种不锈钢酸洗废水资源化回收方法
CN117003412A (zh) * 2017-03-15 2023-11-07 福建希海环保科技有限公司 不锈钢酸洗废水处理系统及其处理方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070007812A (ko) 2004-04-07 2007-01-16 아웃토컴푸 스테인레스 에이비 강 생산과 관련된 방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102325799B1 (ko) * 2020-06-30 2021-11-12 현대제철 주식회사 용선용 매용제 및 이를 이용한 용강 제조 방법

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Publication number Publication date
CN109988878A (zh) 2019-07-09

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